./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread/singleton.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673f1e2e-e044-4c1e-91b1-63930210d046/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673f1e2e-e044-4c1e-91b1-63930210d046/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673f1e2e-e044-4c1e-91b1-63930210d046/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673f1e2e-e044-4c1e-91b1-63930210d046/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/singleton.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673f1e2e-e044-4c1e-91b1-63930210d046/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673f1e2e-e044-4c1e-91b1-63930210d046/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ea0ecaab9c4a4889914d1343f60808acf6ec66df89812b70cea6837a39471f7f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 18:30:04,563 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:30:04,565 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:30:04,588 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:30:04,589 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:30:04,590 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:30:04,592 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:30:04,594 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:30:04,595 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:30:04,597 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:30:04,598 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:30:04,599 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:30:04,600 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:30:04,601 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:30:04,602 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:30:04,604 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:30:04,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:30:04,606 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:30:04,608 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:30:04,610 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:30:04,611 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:30:04,613 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:30:04,614 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:30:04,616 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:30:04,620 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:30:04,620 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:30:04,621 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:30:04,622 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:30:04,622 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:30:04,623 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:30:04,624 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:30:04,625 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:30:04,626 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:30:04,627 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:30:04,628 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:30:04,628 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:30:04,629 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:30:04,629 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:30:04,630 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:30:04,635 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:30:04,638 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:30:04,639 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673f1e2e-e044-4c1e-91b1-63930210d046/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-25 18:30:04,664 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:30:04,664 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:30:04,664 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:30:04,665 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:30:04,665 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:30:04,666 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:30:04,666 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:30:04,666 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:30:04,667 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:30:04,667 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:30:04,667 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:30:04,667 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 18:30:04,668 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:30:04,668 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:30:04,668 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:30:04,668 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:30:04,668 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:30:04,669 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:30:04,669 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 18:30:04,669 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:30:04,669 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:30:04,669 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:30:04,670 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:30:04,670 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:30:04,670 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:30:04,670 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:30:04,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:30:04,671 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:30:04,671 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:30:04,671 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:30:04,671 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:30:04,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:30:04,672 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:30:04,672 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:30:04,672 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:30:04,672 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:30:04,673 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673f1e2e-e044-4c1e-91b1-63930210d046/bin/uautomizer-ZsLfNo2U6R/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673f1e2e-e044-4c1e-91b1-63930210d046/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea0ecaab9c4a4889914d1343f60808acf6ec66df89812b70cea6837a39471f7f [2022-11-25 18:30:04,988 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:30:05,021 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:30:05,023 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:30:05,025 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:30:05,025 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:30:05,026 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673f1e2e-e044-4c1e-91b1-63930210d046/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/pthread/singleton.i [2022-11-25 18:30:08,133 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:30:08,465 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:30:08,466 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673f1e2e-e044-4c1e-91b1-63930210d046/sv-benchmarks/c/pthread/singleton.i [2022-11-25 18:30:08,493 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673f1e2e-e044-4c1e-91b1-63930210d046/bin/uautomizer-ZsLfNo2U6R/data/5d78752c1/6b8423749c764c1ebf554df5c365f90d/FLAG022110d05 [2022-11-25 18:30:08,508 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673f1e2e-e044-4c1e-91b1-63930210d046/bin/uautomizer-ZsLfNo2U6R/data/5d78752c1/6b8423749c764c1ebf554df5c365f90d [2022-11-25 18:30:08,511 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:30:08,513 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:30:08,514 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:30:08,515 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:30:08,519 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:30:08,520 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:30:08" (1/1) ... [2022-11-25 18:30:08,521 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50276f43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:08, skipping insertion in model container [2022-11-25 18:30:08,521 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:30:08" (1/1) ... [2022-11-25 18:30:08,529 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:30:08,579 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:30:08,832 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 18:30:09,156 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673f1e2e-e044-4c1e-91b1-63930210d046/sv-benchmarks/c/pthread/singleton.i[55547,55560] [2022-11-25 18:30:09,160 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:30:09,163 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:30:09,168 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:30:09,170 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:30:09,210 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:30:09,221 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:30:09,238 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 18:30:09,305 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673f1e2e-e044-4c1e-91b1-63930210d046/sv-benchmarks/c/pthread/singleton.i[55547,55560] [2022-11-25 18:30:09,308 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:30:09,312 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:30:09,313 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:30:09,313 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:30:09,320 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:30:09,390 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:30:09,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:09 WrapperNode [2022-11-25 18:30:09,391 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:30:09,392 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:30:09,392 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:30:09,393 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:30:09,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:09" (1/1) ... [2022-11-25 18:30:09,416 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:09" (1/1) ... [2022-11-25 18:30:09,434 INFO L138 Inliner]: procedures = 325, calls = 52, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-11-25 18:30:09,435 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:30:09,435 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:30:09,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:30:09,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:30:09,444 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:09" (1/1) ... [2022-11-25 18:30:09,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:09" (1/1) ... [2022-11-25 18:30:09,448 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:09" (1/1) ... [2022-11-25 18:30:09,448 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:09" (1/1) ... [2022-11-25 18:30:09,456 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:09" (1/1) ... [2022-11-25 18:30:09,458 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:09" (1/1) ... [2022-11-25 18:30:09,460 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:09" (1/1) ... [2022-11-25 18:30:09,461 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:09" (1/1) ... [2022-11-25 18:30:09,464 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:30:09,465 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:30:09,465 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:30:09,465 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:30:09,466 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:09" (1/1) ... [2022-11-25 18:30:09,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:30:09,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673f1e2e-e044-4c1e-91b1-63930210d046/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:30:09,522 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673f1e2e-e044-4c1e-91b1-63930210d046/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:30:09,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673f1e2e-e044-4c1e-91b1-63930210d046/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:30:09,560 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-25 18:30:09,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 18:30:09,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 18:30:09,561 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-25 18:30:09,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 18:30:09,561 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2022-11-25 18:30:09,561 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2022-11-25 18:30:09,561 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-25 18:30:09,562 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-25 18:30:09,562 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-25 18:30:09,562 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-25 18:30:09,562 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-25 18:30:09,562 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-25 18:30:09,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 18:30:09,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 18:30:09,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:30:09,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:30:09,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:30:09,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:30:09,565 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 18:30:09,698 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:30:09,700 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:30:10,018 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:30:10,026 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:30:10,030 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 18:30:10,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:30:10 BoogieIcfgContainer [2022-11-25 18:30:10,033 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:30:10,034 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:30:10,034 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:30:10,037 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:30:10,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:30:08" (1/3) ... [2022-11-25 18:30:10,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ca8a11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:30:10, skipping insertion in model container [2022-11-25 18:30:10,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:09" (2/3) ... [2022-11-25 18:30:10,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ca8a11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:30:10, skipping insertion in model container [2022-11-25 18:30:10,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:30:10" (3/3) ... [2022-11-25 18:30:10,040 INFO L112 eAbstractionObserver]: Analyzing ICFG singleton.i [2022-11-25 18:30:10,049 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 18:30:10,059 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:30:10,060 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2022-11-25 18:30:10,061 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ca8a11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:30:10, skipping insertion in model container [2022-11-25 18:30:10,061 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 18:30:10,062 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 18:30:10,062 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 18:30:10,062 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 18:30:10,063 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:30:10" (3/3) ... [2022-11-25 18:30:10,066 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 18:30:10,073 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread0 [2022-11-25 18:30:10,073 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-25 18:30:10,073 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-25 18:30:10,073 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-11-25 18:30:10,077 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-25 18:30:10,077 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-25 18:30:10,077 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-25 18:30:10,077 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 18:30:10,103 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673f1e2e-e044-4c1e-91b1-63930210d046/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 18:30:10,103 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 18:30:10,105 INFO L158 Benchmark]: Toolchain (without parser) took 1591.22ms. Allocated memory was 115.3MB in the beginning and 155.2MB in the end (delta: 39.8MB). Free memory was 69.2MB in the beginning and 83.7MB in the end (delta: -14.4MB). Peak memory consumption was 27.4MB. Max. memory is 16.1GB. [2022-11-25 18:30:10,105 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 115.3MB. Free memory was 84.5MB in the beginning and 84.4MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:30:10,106 INFO L158 Benchmark]: CACSL2BoogieTranslator took 877.27ms. Allocated memory was 115.3MB in the beginning and 155.2MB in the end (delta: 39.8MB). Free memory was 69.2MB in the beginning and 108.8MB in the end (delta: -39.6MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. [2022-11-25 18:30:10,107 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.71ms. Allocated memory is still 155.2MB. Free memory was 108.8MB in the beginning and 105.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:30:10,108 INFO L158 Benchmark]: Boogie Preprocessor took 28.78ms. Allocated memory is still 155.2MB. Free memory was 105.8MB in the beginning and 104.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:30:10,108 INFO L158 Benchmark]: RCFGBuilder took 567.68ms. Allocated memory is still 155.2MB. Free memory was 104.6MB in the beginning and 89.0MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 18:30:10,109 INFO L158 Benchmark]: TraceAbstraction took 27.33ms. Allocated memory is still 155.2MB. Free memory was 87.9MB in the beginning and 85.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:30:10,109 INFO L158 Benchmark]: Witness Printer took 41.14ms. Allocated memory is still 155.2MB. Free memory was 85.7MB in the beginning and 83.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:30:10,113 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 115.3MB. Free memory was 84.5MB in the beginning and 84.4MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 877.27ms. Allocated memory was 115.3MB in the beginning and 155.2MB in the end (delta: 39.8MB). Free memory was 69.2MB in the beginning and 108.8MB in the end (delta: -39.6MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.71ms. Allocated memory is still 155.2MB. Free memory was 108.8MB in the beginning and 105.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.78ms. Allocated memory is still 155.2MB. Free memory was 105.8MB in the beginning and 104.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 567.68ms. Allocated memory is still 155.2MB. Free memory was 104.6MB in the beginning and 89.0MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 27.33ms. Allocated memory is still 155.2MB. Free memory was 87.9MB in the beginning and 85.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Witness Printer took 41.14ms. Allocated memory is still 155.2MB. Free memory was 85.7MB in the beginning and 83.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specification because the program does not contain any specification. RESULT: Ultimate proved your program to be correct! [2022-11-25 18:30:10,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673f1e2e-e044-4c1e-91b1-63930210d046/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE